HematomaVertebral ArteryVertebral Artery DissectionAortic DiseasesAneurysm, DissectingAortic AneurysmVertebrobasilar InsufficiencyEsophageal DiseasesUlcerHematoma, Epidural, CranialHematoma, SubduralTomography, X-Ray ComputedAorta, ThoracicHematoma, Subdural, ChronicAortographyEchocardiography, TransesophagealInfarction, Anterior Cerebral ArteryRemission, SpontaneousDissectionArteriesAortic Aneurysm, ThoracicHematoma, Subdural, AcuteBlood Vessel Prosthesis ImplantationCerebral AngiographyBasilar ArterySubclavian ArteryHematoma, Epidural, SpinalTreatment OutcomeChest PainAnterior Wall Myocardial InfarctionHematoma, Subdural, IntracranialSubclavian Steal SyndromeCarotid Artery, Internal, DissectionStentsAcute DiseasePericardial EffusionBlood Vessel ProsthesisLateral Medullary SyndromeMagnetic Resonance AngiographyMagnetic Resonance ImagingRetrospective StudiesIntracranial AneurysmCarotid ArteriesAngiographyCarotid Artery, InternalCerebral ArteriesAnticoagulantsPulmonary ArteryCervical VertebraeEmbolization, TherapeuticSubarachnoid HemorrhageNeck DissectionAngiography, Digital SubtractionBrain Stem InfarctionsHematoma, Subdural, SpinalNeck InjuriesArterial Occlusive DiseasesAneurysm, RupturedCervical AtlasFemoral ArteryRenal ArteryFibromuscular DysplasiaAxisOccipital BoneCerebellar DiseasesDisease ProgressionMesenteric ArteriesCarotid Artery DiseasesCarotid Artery, CommonAneurysm, FalseCerebral HemorrhageSensitivity and SpecificityMammary ArteriesCraniotomyIliac ArteryTrephiningConstriction, PathologicFollow-Up StudiesCoronary Artery BypassNeckAtlanto-Axial JointArteriovenous FistulaCerebral RevascularizationCerebral InfarctionRadial ArteryCarotid Artery, ExternalAneurysmIntracranial ArteriosclerosisDoppler EffectVertigoRupture, SpontaneousPercussionAngioplasty, BalloonUltrasonography, Doppler, ColorWounds, NonpenetratingHeadacheCerebrovascular CirculationUltrasonography, DopplerTime FactorsPostoperative Complications